Train heating system



Aug; 1931. 4. c. STILLMAN 1,817,426

TRAIN HEATING SYSTEM Filed July 14, 192'! Patented Aug. 4, 1931 W 1,817,426

warren stares PA N OFFICE. H

JOHN C. STILLMAN, OF APPLETON, WISCONSIN, ASSIGNOR OF TWO-FIFTHS TO L. BETTS, OF WASHINGTON, DIS'II.RIG JI OF COLUMBIA TRAIN HEATING SYSTEM Application filed July 14, 1927. Serial No. 205,670.

This invention relates to train heating the pipe 27, as may be seen from Figure 2, systems. so that the pipe 27 is always positioned Objects of this invention are to provide a inwardly of the pipe 25 on opposite ends novel form or" train heating system in which of the coaches. This permits reversal of exhaust steam is utilized for the heating the coaches and brings the pipes 25 and. 27 55 agent, and in which means are provided for at the correct relative position, irrespective preventing the formation of pockets of of theend of the coach employed. Each of water or air in any portion of the system, so the coaches is similar in construction and that the system may be effectively used therefore a description of the heating sysupon a train of any desired length and will tem for one will be sufiicient. so

thoroughly heat all of the radiators through- Itwill be seen'that a riser 28 extends upout the entire train. wardly' from the pipe 25 to a header 29.

Further objects are to provide a novel. This header is connected by means of heattrain heating system which is economical ing pipes 30 with a second header 31. From in operation, which saves the condensed the header 81, a pipe 32 extends downwardly as steam and returns a portion of such conbelow the car floor and, as may be seen from densate to the tender and also supplies each Figure 2, joins a header 83 onthe opposite of the several coaches with hot water. side of the coach. From the header 33,

Further objects are to provide a system heating pipes 34: extend'to a header 35. A for heating a train by means of the exhaust pipe 36 extends from the header 35. down- 70 steam without creating any increase in back ward'ly through the floor of the coach to the pressure at the discharge or exhaust portion pipe 26. of the engine, and to so organize or relate It is to be noted that the pipes at oppothe different portions of the system that a site ends of the coaches are provided with s thoroughly reliable and highly practical cut-oil valves. For example, the pipe 25 75 method of heating the cars results. is provided with valves 37, the pipe 26 with 7 An embodlment of the lnvcntlon is shown valves 38, and the pipe 27 with valves 1n the accompanying drawings 111 which: These Valves are closed at the rear end of Figure 1 is a diagrammatic view of one the rearmost of the coaches. of the coaches showing the heating system It will be seen from the description thus 80 and the hot water supply system in place; far given that the pipe 26 constitutes a Figure 2 is a plan view, of a portion of suction or return pipe for the water'formed the structure shown in Figure 1. by the condensing steam, and that it keeps Referring more particularly to the drawthe supply pipe 25 for the exhaust steam ings, a coach is generally indicated at 24:, clear of water and air pockets. 85

having a steam pipe 25 therein which is It will be seen also that the hot water connected up with the steam chest of a locopipe 27 supplies hot water to each of the motive and 25 indicates a suction drain pipe, coaches. Preferably, the coaches are each which is connected with suitable means for provided with a tank 40 which is connected 40 draining the hot condensed water from the by means of pipes 41 with the hot water exhausting steam. supply and a hot water pipe 27. It is to be noted that the pipes41 pipe 27 is also provided. Y .7 T communicate with the tank 40 adjacent its The pipe 26 is arranged immediately beupper end and that the uppermost portion neath the pipe 25 as is apparent from an of the tank is provided with a small bleed 45 examination of the drawing, and it is to be pipe 42 by means of which air may pass 95 noted that these pipes are connected adjacent outwardly from the tank. The lower portheir ends by means of small bleed pipes tion of the tank is'connected tothe fixtures 27. In Figure 1, the pipe 27 has been in the coach by means of the pipe43. omitted for the sake of clearness. It isto The steam passes through the radiators be noted that the pipes 25 and 26 cross over 30 and34= and each individual radiator may be controlled by means of the manually operable valve 58, as shown in Figures 1 and 2. The condensed steam passes into the pipe 26. This pipe 26 forms also a continuous 5 chain or line tl'iroughout the train and leads to the suction end of a steam pump (not shown). Thus, this last portion of the system is under a partial vacuum and, consequently, water is sucked from the radiators 10 and they are kept filled with clear steam. In addition to this, the small connecting pipes 27 cause the sucking of all water in the main pipe line 25 into the suction pipe 26 and consequently keep such main line 15 clear of both water and air and prevent any pocketing thereof.

I claim: In a railway coach, the combination of a steam supply pipe and a suction drain pipe :0 extending from one end of the coach to the other and arranged in superposed relation a plurality of steam headers arranged in substantially rectangular formation, means for connecting one of the headers with the steam supply pipe, means for connecting one of the other headers with the suction drain pipe, means connecting the remaining headers, a plurality of parallel pipes connecting the first mentioned header with 30 one of said remaining headers, a plurality of pipes connecting the second header with the other of said remaining headers to provide circulation between all of said headers and the steam supply pipe, and a plurality of small bleed pipes extending downwardly from the steam supply pipe to the suction drain pipe whereby the supply pipe is kept constantly free from air pockets.

In testimony that I claim the foregoing 4:) I have hereunto set my hand at Appleton, in the county of Outagamie and State of Wisconsin.

JOHN C. STILLMAN. 

